Process of treating gems



J l 5, 1937 H. G., KAZANJIAN El AL I 2,085,757

PROCESS OF TREATING GEMS Filed March 14, 1956 14 b MM /2 x ,lfji'gsi.136 .2; 153 .8.

INVENTORS BY W ATTORNEL/ Patented July 6, 1937 UNITED STATES GFFMPROCESS OF TREATING GEMS Harry G. Kazanjian and James M. Kazanjian, LosAngeles, Calif.

Application March 14, 1936, Serial No. 68,972

ject the provision of an improved process of treating gems.

An object of the invention is to provide a method of correcting flaws ordefects in stones by inlaying fragments of stones of less hardness thanthose to be inlaid in the pits, cavities or depressions; the inlaysbeing fused by suitable heat so as to completely fill the cavities,

and thereafter ground and polished so as to remove protruding portionsof the inlays and provide uninterrupted and smooth surfaces on thetreated facets of the gems.

In the accompanying drawing we have shown a preferred process fortreating stones for the purpose hereinbefore mentioned, subject tomodification, within the scopeof the appended claims, without departingfrom the spirit of the invention. In said drawing:

Figs. 1, 2, and 3, are views of a gem, in cross section, showing,respectively, the initial application of an inlay, the completed andunfinished inlay in position in the'cavity of a gem, and the gem afterthe final grinding and polishing to remove indication of the inlay.

In carrying out this invention a gem of the character shown at lb inFig. 1 and having a defect such as a cavity II on a facet or side l4thereof, is treated so that the cavity is filled without leaving anyvisible indication thereof.

This is accomplished by fusing a fragment l2 of a gem of softer materialand of a color matching the gem under treatment, by means of theapplication of heat as from a burner l3, so that the inlay will run intoand completely fill the cavity. This step in the operation isillustrated in Fig. 1.

Thereafter, as shown in Fig. 2, the protruding outer portion of theinlay is ground off and the surface M is polished so that the completedgem will appear as shown in Fig. 3, and the outer surface of the inlaywill be flush with the corresponding surface of the gem.

What we claim, is:

1. The process of treating gems which have cavities therein consistingof: fusing a fragment of a gem of less hardness than the gem having thecavity, filling said cavity with fused inlay, and finally grinding theprotruding portions of said inlay so that the same will be flush withthe adjacent surface of said gem.

2. The process of treating gems having cavities therein which consistsin: positioning a fragment of .a gem of less hardness than the gem to betreated adjacent the cavity in the gem, applying heat to said fragmentso that the same will be fused into and will fill said cavity andthereby form an inlay, and grinding and polishing the protruding portionof said inlay so that its outer surface will be flush with thecorresponding surface of the gem.

3. The process of treating gems having cavities therein which consistsin: fusing an inlay of a color corresponding to that of the gem to betreated and of less hardness than said gem into a cavity of said gem,and removing the protruding portions of said inlay so that thecorresponding surfaces of said gem and said inlay will be in a commonplane.

